Chock full of nutty flavor, these triple decker hazelnut brownies are sure to please all the chocolate + hazelnut lovers in your life.
These are probably, technically speaking, quadruple decker brownies but that doesn’t have the same ring to it that “triple decker” does, and I’m counting the glaze as part of the frosting. (Name explained!)
You guys, I think the Phoenix heat has fried my brain. I’ve been kind of foggy and words just sort of escape me lately.
In fairness to the PHX, my fogginess might be due to the fact that we still don’t have blinds (fingers crossed they’ll be installed this week!) and I wake up every day with the sun. And the sun gets up at like 4:30.
But, case in point, I made these hazelnut brownies a few weeks ago and am only now getting around to posting them because I just couldn’t think of much to say beyond OH EM GEE GUYS! THESE HAZELNUT BROWNIES ARE AMAZING! (Which is true—a hazelnut crust, a fudgy brownie layer studded with still more hazelnuts, and a Frangelico frosting topped with chocolate glaze make these my new favorite dessert.)
But I wanted to do justice to the wonder that is this recipe and it seems my vocabulary has been reduced to that of a 12-year-old (down from my usual eloquent 14-year-old vocabulary) so I waited. And waited more. And then decided just to go for it because I couldn’t wait any longer.
Honestly, if you’re a fan of hazelnuts’ earthy nuttiness you need to RUN to the kitchen and make these. Hazelnut is easily one of my favorite flavors. . .Hazelnut and chocolate together make me swoon. (You should see the rate at which I take down a jar of Nutella. Actually, no. You shouldn’t.)
Or maybe I’m swooning because it’s 100 degrees outside? Either way, these hazelnut brownies are where it’s at.
Sure, they’re a little more work than your average brownie. But that extra work is SOOOOO worth it—especially if you’re a texture nut like me. (Pun unintended but I kinda like it so it stays.) You get crumble from the shortbread-like crust, crunch from the hazelnuts in the brownie, and creaminess from the frosting.
Yep. Triple decker hazelnut brownies are all my dessert dreams come to life!
Have a great week, everybody! I’ll be over here thinking about brownies and blinds installers if you need me 🙂
Hazelnut brownies are a delicious and nutty dessert or snack!
- 1/3 cup packed light brown sugar
- 6 tablespoons unsalted butter at room temperature
- 2/3 cup all-purpose flour sifted
- 1/2 cup very finely chopped roasted hazelnuts
- 2 ounces unsweetened chocolate finely chopped
- 8 tablespoons unsalted butter
- 2 large eggs
- 1/2 cup granulated sugar
- 1/2 cup packed light brown sugar
- 1 teaspoon vanilla extract
- 1/2 teaspoon espresso powder optional
- 1/4 cup Frangelico can substitute Kahlua
- 1/2 cup all-purpose flour sifted
- 1/4 teaspoon salt
- 1/2 cup chopped roasted hazelnuts
- 6 tablespoons unsalted butter at room temperature
- 2 cups powdered sugar sifted
- 1 tablespoon Frangelico can substitute Kahlua
- 1 tablespoon heavy cream or whole milk
- 1/4 teaspoon salt
- 2 ounces semi-sweet chocolate finely chopped
- 1 ounce unsweetened chocolate finely chopped
- 2 teaspoons refined coconut oil
- Preheat oven to 350 degrees. Spray a 9-inch square baking pan with cooking spray. Line the bottom with parchment paper and spray the paper. Set pan aside.
- Combine the butter and sugar in the bowl of a stand mixer fitted with the paddle attachment. Cream on medium speed until light and fluffy. Gradually add the flour and mix until combined. Mix in hazelnuts until combined, then press into an even layer in the bottom of the prepared pan. (It will seem like there won’t be enough to cover the whole bottom; just keep going and you’ll get there.) Set aside.
- Combine the butter and chocolate in a microwave-safe bowl and heat in 30-second intervals, stirring after each interval, until chocolate is melted and mixture is smooth. Cool.
- Combine the eggs, sugars, vanilla, and espresso powder (if using) in a large mixing bowl. Whisk until blended. Stir in the cooled chocolate and Frangelico. Gradually whisk in the flour and salt, mixing until smooth. Fold in the hazelnuts. Pour filling over crust and smooth into an even layer with a rubber spatula. Bake for 22 to 25 minutes, until a cake tester inserted into the center comes out clean. (Don’t overbake them.) Cool completely on a wire rack before proceeding with the recipe.
- Place the butter in the bowl of a stand mixer fitted with the paddle attachment and mix until smooth. Add remaining ingredients and beat on medium speed until smooth and creamy. (If frosting is too thick, add additional Frangelico or milk to make it spreadable.) Spread over cooled brownies, then refrigerate for 30 minutes.
- Combine the chocolate and coconut oil in a small microwave-safe bowl. Heat in 15-second intervals, stirring after each interval, until chocolate is melted and mixture is smooth. Cool slightly, then spread over the frosting. Refrigerate until glaze is set, then slice into bars and serve. (Freeze leftovers, tightly wrapped, for up to 3 months.)
Triple Decker Hazelnut Brownies adapted from Stop and Smell the Rosemary
Andy Gibbs says
Nice! Do you think replacing hazelnut with almonds or even adding to hazelnut would take away from the recipe?
Kelsie says
I think almonds would work just fine. Pecans would also be good!
Marie @ Yay! For Food says
Triple decker (or four), these look so decadent and I’m drooling. I am love the combo of chocolate and hazelnut together; when I first tried Nutella, I could not stop. LOL! I hope you get your blinds soon! Getting blinded by the sunlight every morning at 4:30 is no fun at all.
Kelsie says
Thank you Marie! Nutella is a little too good isn’t it? 🙂
Georgie | The Home Cook's Kitchen says
yassss! these look so good,omg your recipes always make my mouth water! I’m swap our weather for yours! in true portland style, it went from super sunny, to rainy and cold over the weekend 🙁
Kelsie says
Oh jeez. I know that PWN weather too well :). I’ll send some sunshine your way! Have a great week, Georgie!
dawnyucuiscooking says
Oh my goodness, these are my kind of brownies. I have to make these.
Kelsie says
Thank you Dawn! You’ll have to let me know what you think! Hope you’re having a great day 🙂
eastofedencook says
Just wow! The resident chocolate lover at my house would adore these lush brownies!
Kelsie says
Thank you Deb! As an avowed chocolate lover myself, I can say you’re absolutely right :). Have a great week!
Ben|Havocinthekitchen says
This heat drives me nuts. I feel sleepy (well, the truth is I feel sleepy when it’s cold too. Well…I regularly feel that way), exhausted, grumpy, and lost the ability to think and speak coherently. However, I haven’t lost the ability to recognize some seriously delicious stuff like these brownies. Nicely done Kelsie!
Kelsie says
Oh no! Haha–cold makes me feel sleepy but fortunately heat wakes me up. I think I might be backward :). Thank you Ben. I hope you have a great week!
Kelly @ Kelly Lynn's Sweets and Treats says
Yeah I would totally eat the whole pan of these!! I hope you get your blinds up! 4:30 is tooooooooooo early to get up lol 😉 have s great week girly! Xoxo
Kelsie says
Thank you Kelly! They’re definitely dangerous :). You have a great week too, my dear!
lynne hoareau says
OMW…I am speechless !!!! All I can say really is……Yes please, and Thank You !!!! Have an awesome week Kelsie 🙂
Kelsie says
Haha! Thank you Lynne! You too 🙂
3scoopsofsugar says
OMGEE is right! I am totally pretending that I can taste these right now and WOW! I am already adding these ingredients to my next grocery list cause I need a good dessert recipe for this weekend. Can’t wait to try them!!
Kelsie says
Haha! Thank you Megan! I hope you love them as much as I did :). Have a great week!
Deepika Katyal says
My my ?? Thats a killer dessert ?? All four layers are so delicious on there own.. I can’t even imagine how crazy they would be together! Brilliance ?
Kelsie says
Thank you Deepika! Have a great week!
Mary Ann @ thebeachhousekitchen says
Layers and layers of YUM Kelsie! These look delicious. Happy Monday!
Kelsie says
Thank you Mary Ann! Happy Monday to you too!
Cheyanne @ No Spoon Necessary says
Wait, quadruple?!? As if triple wasn’t enough?! WOWZA! I looooooove hazelnut SO SO much, so these brownies are definitely making me drool!! Unfortunately I’m allergic to cocoa, so I’m going to have to make these for the hubs and live vicariously through him as he devours ALL of them. I’m jealous already. 😉 Cheers, friend!
Kelsie says
Haha! Thank you Cheyanne! I hate that you’re allergic to cocoa. I’ll have to come up with some hazelnut desserts that are fully sans chocolate :). I hope you have a great week my dear!
Milena | Craft Beering says
This is easily my favorite thing you have made since I have been visiting your blog Kelsie! Each layer is completely to my liking, cannot and will not refuse hazelnuts and chocolate, and brown sugar and Frangelico. No Nutella jar comes close:) These brownies are going on my Pair with Stout board. I will make them and then slice them in tiny bites for guests to taste and I will keep the rest of the quantity for myself. Sometimes you just have to be selfish.
Kelsie says
Awwwww thank you Milena! They really do beat the pants off nutella :). I can only imagine how perfect they’d be paired with stout! Have a great week, my friend!
Dawn - Girl Heart Food says
The title definitely has a nice ring to it, but you know what? Whatever you call ’em, I call ’em delicious! Each layer on its on sounds fabulous, but together? Whoa! Why did you wait so long to share, girl 🙂 ?? Happy Monday to ya!
Kelsie says
Haha! Thank you Dawn! Next time I have something so delish I’ll post the pics alone if I can’t think of something to say :). Have a great week, my friend!
Kim | The Baking ChocolaTess says
OMGosh!! You’re talking my language Kelsie! I would eat the whole pan..and whatever was leftover in the nutella jar. 😀 I get the name! Can we really go with Quadruple in the title? LOL…it’s just wierd! haha! Happy Monday my friend!!
Kelsie says
I’m so glad you think so! Quadruple is just one syllable too many :). Thank you Kim! I hope you’re having a great day!
thebakingskillet says
Oh man Kelise! you are making me swoon too! I hide my jar of nutella in the depths of the pantry and pretend I have forgotten all about it. But can you ever forget that there is nutella in the house!! Chocolate and hazelnut combo is irresistible and so are these brownies!
Kelsie says
No matter how deep in my pantry the nutella is I hear it calling my name and I just eat and eat and eat until it’s gone. Thank you Jenny! I hope you have a great week 🙂
pglooney says
These certainly do look worth the extra effort!
Kelsie says
Thank you Patrick!
David | Spiced says
3 layers of deliciousness? Ok, that’s it. I’m going to need to stop everything and make a batch of these ASAP. These look incredible, Kelsie! Plus, I’m a huge fan of hazelnuts, and I’m digging the crust layer here. Hazelnuts are always underappreciated in the nut game. They’re like the nut who gets picked last at playground football, but then ends up catching the game winning pass in overtime. And Frangelico, too? You’ve outdone yourself here!! Hope you have a great week ahead full of brownies and blinds. (For the record, we need some blinds in our bedroom, too. Let me know when you find a guy?)
Kelsie says
Haha! I’m totally dying of laughter right now, but you’re right on! I wish hazelnuts were appreciated the way, say, peanuts are :). They’re equally as delicious! I’ll let you know if my blinds guy delivers on time. Who knows? Maybe he summers in your area!
spicedblog says
Hah! I’m thinking you should ask your blinds guy where he spends his summers. That’ll lead to a fun conversation, and maybe (just maybe) it’s in upstate New York! 🙂
Kelsie says
I’ll ask him! Apparently no one spends the summer in PHX except me so there’s a chance 🙂
All That I'm Eating says
Oh my. These look amazing. There’s nothing I don’t like about them!
Kelsie says
Thank you so much! Happy Monday 🙂